My view of fights are: "Somebody is going to get hurt which makes it worth avoiding."
On upgrading your belt: Better control at higher levels. My worst injuries were from Yellow and Orange Belts
Of course the last time anyone even thought of fighting me, I was in a VW bug and he was in a Corvette. (He had parked in front of the doors of the convience store which made my manuever to get in a real space interesting.) I got out of the bug, he saw my 6'8" frame, got back in his car and drove off. I then got my Slurpee in peace.
Not one of my finer moments, but I had had enough crap from work that day. I like to think I'm better at defusing situations since then. (I've also gone from Orange to Green Belt since then. Need to buckle down and get my Brown, it's been too long)

p.s. I was just checking out previous polls